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Christopher R. Johnson
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Phone: 801-581-7705
Office: 3490A MEB

Christopher R. Johnson

Distinguished Professor of Computer Science
Research Professor of Bioengineering
Director, School of Computing
Director, Scientific Computing and Imaging Institute
Adjunct Professor, Bioengineering

Research

Scientific Computing


Current Research

Professor Johnson's research interests are in the area of scientific computing. Particular interests include inverse and imaging problems, adaptive methods, problem solving environments, biomedical computing, and scientific visualization.


Selected Publications

Potter K, Rosen P, Johnson CR, From Quantification to Visualization: A Taxonomy of Uncertainty Visualization Approaches. IFIP Adv Inf Commun Technol 2012;377:226-249

Wong PC, Shen HW, Johnson CR, Chen C, Ross RB, The top 10 challenges in extreme-scale visual analytics. IEEE Comput Graph Appl 2012 Jul-Aug;32(4):63-7

Gur Y, Johnson CR, GENERALIZED HARDI INVARIANTS BY METHOD OF TENSOR CONTRACTION. Proc IEEE Int Symp Biomed Imaging 2014 Apr 29;2014:718-724

Wang D, Kirby RM, Macleod RS, Johnson CR, Inverse Electrocardiographic Source Localization of Ischemia: An Optimization Framework and Finite Element Solution. J Comput Phys 2013 Oct 1;250:403-424

Burton BM, Erem B, Potter K, Rosen P, Johnson CR, Brooks DH, Macleod RS, Uncertainty Visualization in Forward and Inverse Cardiac Models. Comput Cardiol (2010) 2013;40:57-60

Jiao F, Phillips JM, Gur Y, Johnson CR, Uncertainty Visualization in HARDI based on Ensembles of ODFs. IEEE Pac Vis Symp 2012 Dec 31;2013:193-200

Gur Y, Jiao F, Zhu SX, Johnson CR, White matter structure assessment from reduced HARDI data using low-rank polynomial approximations. Med Image Comput Comput Assist Interv 2012 Oct;15:186-197

Moinpour CM, Darke AK, Donaldson GW, Cespedes D, Johnson CR, Ganz PA, Patrick DL, Ware JE Jr, Shumaker SA, Meyskens FL, Thompson IM Jr, Health-Related Quality-of-Life Findings for the Prostate Cancer Prevention Trial. J Natl Cancer Inst 2012 Sep 12;:

Potter K, Kirby RM, Xiu D, Johnson CR, INTERACTIVE VISUALIZATION OF PROBABILITY AND CUMULATIVE DENSITY FUNCTIONS. Int J Uncertain Quantif 2012;2(4):397-412

Johnson CR, Biomedical Visual Computing: Case Studies and Challenges. Comput Sci Eng 2012 Jan;14(1):12-21

Samuel R, Sant HJ, Jiao F, Johnson CR, Gale BK, Microfluidic laminate-based phantom for diffusion tensor-magnetic resonance imaging (DT-MRI). J Micromech Microeng 2011 Sep;21(9):950271-9502711

Wang D, Kirby RM, Johnson CR, Finite-element-based discretization and regularization strategies for 3-D inverse electrocardiography. IEEE Trans Biomed Eng 2011 Jun;58(6):1827-38

Wang D, Kirby RM, Macleod RS, Johnson CR, An optimization framework for inversely estimating myocardial transmembrane potentials and localizing ischemia. Conf Proc IEEE Eng Med Biol Soc 2011;2011:1680-3

Jiao F, Gur Y, Johnson CR, Joshi S, Detection of crossing white matter fibers with high-order tensors and rank-k decompositions. Inf Process Med Imaging 2011;22:538-49

Jiao F, Gur Y, Johnson CR, Joshi S, Detection of crossing white matter fibers with high-order tensors and rank-k decompositions. Inf Process Med Imaging 2011;6801:538-549

Wang D, Kirby RM, Johnson CR, Resolution strategies for the finite-element-based solution of the ECG inverse problem. IEEE Trans Biomed Eng 2010 Feb;57(2):220-37

Jiao F, Phillips JM, Stinstra J, Krger J, Varma R, Hsu E, Korenberg J, Johnson CR, Metrics for Uncertainty Analysis and Visualization of Diffusion Tensor Images. Lect Notes Comput Sci 2010;6326(2010):179-190

MacLeod RS, Stinstra JG, Lew S, Whitaker RT, Swenson DJ, Cole MJ, Krüger J, Brooks DH, Johnson CR, Subject-specific, multiscale simulation of electrophysiology: a software pipeline for image-based models and application examples. Philos Trans A Math Phys Eng Sci 2009 Jun 13;367(1896):2293-310

Johnson JT, Hansen MS, Wu I, Healy LJ, Johnson CR, Jones GM, Capecchi MR, Keller C, Virtual histology of transgenic mouse embryos for high-throughput phenotyping. PLoS Genet 2006 Apr;2(4):e61

Kindlmann GL, Weinstein DM, Jones GM, Johnson CR, Capecchi MR, Keller C, Practical vessel imaging by computed tomography in live transgenic mouse models for human tumors. Mol Imaging 2005 Oct-Dec;4(4):417-24

Samsonov AA, Kholmovski EG, Parker DL, Johnson CR, POCSENSE: POCS-based reconstruction for sensitivity encoded magnetic resonance imaging. Magn Reson Med 2004 Dec;52(6):1397-406

Samsonov AA, Johnson CR, Noise-adaptive nonlinear diffusion filtering of MR images with spatially varying noise levels. Magn Reson Med 2004 Oct;52(4):798-806

Johnson CR, MacLeod RS, Adaptive local regularization methods for the inverse ECG problem. Prog Biophys Mol Biol 1998;69(2-3):405-23

Klepfer RN, Johnson CR, Macleod RS, The effects of inhomogeneities and anisotropies on electrocardiographic fields: a 3-D finite-element study. IEEE Trans Biomed Eng 1997 Aug;44(8):706-19

Johnson CR, Computational and numerical methods for bioelectric field problems. Crit Rev Biomed Eng 1997;25(1):1-81

Johnson CR, MacLeod RS, Ershler PR, A computer model for the study of electrical current flow in the human thorax. Comput Biol Med 1992 Sep;22(5):305-23